Question

如何在悬停在条形图上时将单位添加到标签中？我查看了文档，但找不到答案。

http://www.chartjs.org/docs/#bar-chart

我想添加例如（mm，°C，）我的代码：

            options: {
            scales: {
                yAxes: [{
                    ticks: {
                        beginAtZero:false                            
                    },
                    scaleLabel: {
                        display: true,
                        labelString: 'Temperature'

                    }
                }]                    
            },

            title: {
                display: true,
                text: 'Temperature'
            },

            tooltips:{
                enabled: true,
                mode: 'label'                    

            }
        }
    });

datasets: [
            {
                label: "Temperature",
                type: "line",
                backgroundColor: "transparent",                    
                borderColor: "#C72448",
                pointBackgroundColor: "#C72448",
                pointBorderColor: "#fff",
                pointHoverBackgroundColor: "#fff",
                pointHoverBorderColor: "rgba(179,181,198,1)",
                data: [19,20,21,24,27,29,30,31,30,28,25,21]

            }

Answer 1

您可以使用tooltip callbacks configuration将工具提示添加到工具提示。

例如，以下是如何在工具提示中添加“GB”单位：

const options = {
  tooltips: {
    callbacks: {
      label: (item) => `${item.yLabel} GB`,
    },
  },
}

Answer 2

对于Angular 7，这对我有用，可能会帮助您：

from pyspark.context import SparkContext
from pyspark import SparkConf

from google.cloud import language
from google.cloud.language import enums
from google.cloud.language import types


def comment_analysis(comment):

    client = language.LanguageServiceClient()
    document = types.Document(
        content=comment,
        type=enums.Document.Type.PLAIN_TEXT)
    annotations = client.analyze_sentiment(document=document)
    total_score = annotations.document_sentiment.score
    return total_score


sc = SparkContext.getOrCreate(SparkConf())

expressions = sc.textFile("sentiment_lines.txt")

mapped_expressions = expressions.map(lambda comment: comment_analysis(comment))

图表JS：如何设置单位？

2 个答案: